Displaying 1 - 25 out of 125 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Perityle lemmonii (A.Gray) A.M.Powell | A. M. Powell 1695 | 02 Apr 1969 | United States of America | Arizona | Pima Co. Just NW of… | — |
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| Perityle congesta (M.E.Jones) Shinners | A. M. Powell 1264 | 31 Jul 1964 | United States of America | Arizona | Coconino Co. In crevices of… | — |
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| Layia glandulosa (Hook.) Hook. & Arn. | A. M. Powell 1806 | 26 Mar 1970 | Mexico | Baja California | About 10 mi NE of… | — |
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| Peucephyllum schottii A.Gray | A. M. Powell 1738 | 23 Mar 1970 | Mexico | Baja California | 30 mi S of San… | — | ||||
| Nicolletia trifida Rydb. | A. M. Powell 1739 | 23 Mar 1970 | Mexico | Baja California | 30 mi S of San… | — | ||||
| Palafoxia arida B.L.Turner & M.I.Morris | A. M. Powell 1730 | 23 Mar 1970 | Mexico | Baja California | 16 mi S San Felipe | — | ||||
| Palafoxia arida B.L.Turner & M.I.Morris | A. M. Powell 1705 | 22 Mar 1970 | Mexico | Baja California | 41.6 miles S of Mexicali | — | ||||
| Calycoseris wrightii A.Gray | A. M. Powell 1761 | 24 March 1970 | Mexico | Baja California | 18 miles S of Bahia… | — |
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| Errazurizia megacarpa (S.Watson) I.M.Johnst. | A. M. Powell 1727 | 23 Mar 1970 | Mexico | Baja California | 16 miles S of San… | — | ||||
| Marina parryi (Torr. & A.Gray) Barneby | A. M. Powell 1746 | 23 Mar 1970 | Mexico | Baja California | 24 miles S of Puertecitos | — | ||||
| Machaeranthera pinnatifida (Hook.) Shinners | A. M. Powell 1757 | 24 Mar 1970 | Mexico | Baja California | 18 mi S of Bahía… | — |
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| Chaenactis stevioides Hook. & Arn. | A. M. Powell 1800 | 25 Mar 1970 | Mexico | Baja California | Ca. 27 miles W of… | — |
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| Brickellia | A. M. Powell 1805a | 25 Mar 1970 | Mexico | Baja California | 4 mi S of Bahia… | — |
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| Ambrosia dumosa (A.Gray) W.W.Payne | A. M. Powell 1735 | 23 Mar 1970 | Mexico | Baja California | 16 mi S San Felipe | — |
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| Ambrosia magdalenae (Brandegee) W.W.Payne | A. M. Powell 1769 | 24 Mar 1970 | Mexico | Baja California | Intersection of main road down… | — |
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| Ambrosia chenopodiifolia (Benth.) W.W.Payne | A. M. Powell 1816 | 26 Mar 1970 | Mexico | Baja California | 10 mi NW of El… | — |
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| Ambrosia ambrosioides (Cav.) Payne | A. M. Powell 1766 | 24 Mar 1970 | Mexico | Baja California | 18 mi S of Bahía… | — |
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| Ambrosia ilicifolia (A.Gray) W.W.Payne | A. M. Powell 1751 | 23 Mar 1970 | Mexico | Baja California | About 10 mi S of… | — |
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| Malacothrix glabrata (A.Gray ex D.C. Eaton) A.Gray | A. M. Powell 1765 | 24 Mar 1970 | Mexico | Baja California | 18 mi S of Bahía… | — |
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| Malperia tenuis S.Watson | A. M. Powell 1725 | 23 Mar 1970 | Mexico | Baja California | 16 mi S San Felipe | — |
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| Hofmeisteria fasciculata (Benth.) Walp. | A. M. Powell 1747 | 23 Mar 1970 | Mexico | Baja California | 24 mi S of Puertecitos | — |
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| Palafoxia arida B.L.Turner & M.I.Morris | A. M. Powell 1818 | 27 Mar 1970 | Mexico | Baja California Sur | 25 mi S of El… | — | ||||
| Perityle crassifolia (Brandegee) var. crassifolia | A. M. Powell 1849 | 31 Mar 1970 | Mexico | Baja California Sur | La Paz Mun. Punta Arena,… | — | ||||
| Ambrosia ambrosioides (Cav.) Payne | A. M. Powell 1838 | 29 Mar 1970 | Mexico | Baja California Sur | 11 mi W Loreto and… | — |
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| Chaenactis lacera Greene | A. M. Powell 1810 | 26 Mar 1970 | Mexico | Baja California Sur | Los Cabos Mun. San Jose… | — |
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